Radiator



Nov. 21, 1933. 'r. s. HART AL 1,936,235

RADIATOR Filed Aug.7, 1931' 2 Sheets-Sheet 1 29a INVENTORS 29 Th eodor'e S. H art.

14 T Philip M.Bush BY THEIR ATTORNEY 'Nov. 21 1933., "r. s. HART ET AL RADIATOR Filed Aug. '7; 1951 2 Sheets-Sheet 2 INVENTORS Theodore Slim-t.

Patented Nov. 21, 1933 RADIATOR Theodore 8. Hart, New Britain, and Philip M. Bush, Bloomfield, Conn., assignors to The Hart & Hutchinson Company, New Britain, 001111., a corporation of Connecticut Application August 7, 1931. Serial No. 555,720

14 Claims. (01. 257- 139) section and having a plurality of transverse ribbed heat-radiating fins.

A further object of the invention is to provide a radiator of the above nature in which the end headers are provided with tapped bosses extending in different directions so as to render the radiator readily adaptable to various plumbing conditions. v

A further object of the invention is to provide a radiator of the above nature in which the radiating fins are constructed with a plurality of vertical strengthening ribs.

A further object of this inventionis to provide a radiator of the above nature which will be simple in construction, inexpensive to manufacture, easy to install and manipulate, compact, ornamental in appearance, and very efiicient and durable in use.

With these and other objects in view there have been illustrated on the accompanying drawings, several forms in which the invention may be conveniently embodied in practice.

In the drawings:

Fig. 1 represents an elevation view of the first form of the invention with parts broken away to show the interior construction.

Fig. 2 is a right-hand end view of the same.

Fig. 3 is a fragmentary plan view of the same.

Fig. 4 is a transverse sectional view of the same taken along the line 4-4 of Fig. 1, looking in the direction of the arrows.

Fig. 5 is an elevation view, partly in section, of a modified form of the invention in which the radiator is provided with a pair of three-way end header-caps.

Fig. 6 is a right-hand end view of the same.

Fig. 7 is a fragmentary plan view of the same.

Fig. 8 is an elevation view of another modified form of the invention, in which the radiator has two parallel oval tubes attached to a pair of end headers.

Fig. 9 is a right-hand end view of the same.

Fig. 10 is a fragmentary plan view of the same.

Fig. 11 is a transverse sectional view of the same, taken along the line 11.11 of Fig. 8, looking in the direction of the arrows.

In modern home and oifice constructions, it is desirable that radiators should occupy the smallest possible floor area, and at the same time present the maximum amount of radiating surface. Moreover, the radiator should be easy to install and capable of connection either with vertical or horizontal feed line pipes. The present invention is designed to accomplish these results.

Referring now to the drawings in which like reference numerals denote corresponding parts throughout the several views, the numeral 10 indicates an oval-shaped radiator tube connected at its ends to an inlet header 11 and an outlet header 12, respectively. Each of the headers 11 and 12 consists of a rectangular end plate 13 (13a) having at its lower end an inwardly offset integral depending hollow boss 14 (14a), said bosses 14 and 14a being tapped for receiving a vertical inlet pipe 15 and a-vertical outlet pipe 16.

In order to allow for the free passage of heating fluid betweenthe oval tube 10 and the hollow boss 14 (14a), provision is made of a countersunk groove 1'7 upon the outer face of the plate 13 (13a), said groove being adapted to receive an elongated end cap 18 (18a) which is welded therein. The outlet header 12, as viewed in Fig. 1, is provided at its upper end with a small vertical hollow tapped air-vent boss 19 formed integral with the plate 13a. Any desired type of airvent valve may be screwed into said boss 19, and provision may be made of a small curved vent pipe 20 extending laterally and downwardly therefrom, the lower end of said vent pipe terminating opposite the end of the radiator tube 10.

The oval tube 10 has a plurality, of equally spaced transverse rectangular fins 21 preferably of copper. The fins 21 have short interior drifted flanges 22 shaped to fit over the oval tube 10, and said flanges are soldered or otherwise permanently secured to said tube. As clearly shown in Fig. 1, the flanges 22 serve to produce a strong contact with the fins and tube.

In order to strengthen the fins and increase the radiation efficiency of the radiator, each of the fins 21 is provided with a plurality of ribs 23, four inthis instance, said ribs extending the entire vertical length of said fins.

In the modified form of the invention shown in Figs. 5 to 7 inclusive, the radiator is identical with that shown in Figs. 1 to 4 inclusive, except that the oval tube 10 is welded into a pair of plates 24 and 25 having a smooth outer rim. Each of the plates 24 (25) is provided as before with a rectangular groove 26 similar to the grooves 17 of the first form of the invention. The groove 26 is adapted to have fitted and welded therein a pair of three-way hollow end caps 2'? and 28.

In order to selectively connect the central tube 10 of this form of radiator with the inlet and outlet pipes extending downwardly, upwardly or laterally, the end caps 27 and 28 are each provided with three protruding tapped bosses 29, 29a, 29b, and 30, 30a and 30b, respectively, as clearly shown in Fig. 5.

It will be understood, of course, that only one boss in each end cap 29 and 30 is to be selectively joined to the pipes 15 and 16, the other two bosses of each end cap being out of use and adapted to be closed by suitable standard pipe plugs 31. It will be evident that this type of radiator may be easily installed under plumbing conditions of many types and requires only a minimum amount of space for the pipe fittings.

In the modified form of the invention shown in Figs. 8 to 11 inclusive, a radiator is disclosed which is similar to the first form of the invention shown in Figs. 1 to 4, except that the radiator is constructed with two parallel oval-shaped radiator tubes 32 and 33, suitably mounted in a pair of inlet and outlet headers 34 and 35, re-' spectively. The oval tubes 32 and 33 are surrounded by a plurality of uniformly spaced rectangular radiating fins 36 similar to the fins 21 employed in the previously described radiators, except that each fin 36 is provided with a pair of vertical openings, the edges of which have short drifted flanges 37 and 38 for fitting over the tubes 32. and 33, as clearly shown in Figs. 10 and 11. In this form of the invention, each of the headers 34 and includes a substantially square end plate 39 (40) into which is suitably welded a pair of hollow end caps 41 (42) In order to connect this form of radiator with the plumbing system, the end caps 41 and 42 are each provided at their lower ends with a downwardly offset tapped boss 43 (44) adapted to be connected to the inlet and outlet pipes 15 and 16, respectively. The bosses 43 and 44 are positioned with their bottom edges well below the base of the integral caps 41 and 42, so that when the pipes 15 and 16 have been screwed into position, the water will drain freely out oi. the radiator without being trapped therein.

The plate 40 of the outlet header 35 is provided at its upper end with an inwardly offset small hollow air valve boss 45 similar to the boss 19 previously described, the valve being indicated by the numeral 46.

One advantage of the present invention lies in the fact that a radiator of minimum height has been provided permitting the use of a small radiator enclosure. Or if the radiator is to be concealed within a wall stack, the radiator will occupy only a small height of the flue, thus enhancing the chimney effect and producing a more rapid circulation of air around the radiator fins.

While there have been disclosed in this specification several forms in which the invention may be embodied, it is to be understood that these formsare shown for the purpose of illustration only, and that the invention is not to be limited to the specific disclosures but may be modified and embodied in various other forms without departing from its spirit. In short, .t he invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new,-and for which it is desired to secure Letters Patent, is:

1. In a radiator of the extendedfin type, a

heating chamber comprising a horizontal finsurrounded tube, inlet and outlet headers at the ends of said tube, each of said headers including a vertical plate having a tube-embracing aperture surrounded by a countersunk groove, and end caps fitting said grooves for closing the ends of said tube, said caps being adapted to be welded into said grooves.

2. In a radiator of the extended fin type, a heating chamber comprising a horizontal fin-surrounded over-shaped tube, inlet and outlet headers at the ends of said tube, each of said headers including a vertical plate having a tube-embracing aperture surrounded by a countersunk groove, and end caps fitting said grooves for closing the ends of said tube, said caps being adapted to be welded into said grooves.

3. In a radiator of the extended fin type, a heating chamber comprising a horizontal finsurrounded tube, inlet and outlet headers at the ends of said tube, each of said headers including a vertical plate having a tube-embracing aperture surrounded by a countersunk groove, and end caps fitting said grooves for closing the ends of said tube, said caps being adapted to be welded into said grooves, each of said end caps having a tapped boss to receive a pipe connection.

4. In a radiator of the extended fin type, a heating chamber comprising a fin-surrounded horizontal tube, inlet and outlet headers at the ends of said tube, each of said headers comprising a vertical flat plate surrounding said tube and welded thereto, and an end cap covering one end of said tube and welded to said plate outside of the welded joint between said plate and said tube, said plate extending outwardly beyond said cap.

5. In a radiator of the extended fln type, a heating chamber comprising a plurality of finsurrounded horizontal tubes, inlet and outlet headers at the ends of said tubes, each of said headers comprising a vertical plate surrounding said tubes and welded thereto, and an end cap covering one end of said tubes and welded to said plate outside of the welded joint between said plate and said tubes, said plate extending outwardly beyond said cap and being of the same size as said fins.

6. In a radiator of the extended fin type, a heating chamber comprising a fin-surrounded horizontal tube, inlet and outlet headers at the ends of said tube, each of said headers comprising a vertical plate surrounding said tube and welded thereto, and an end cap covering one end of said tube, and welded to said plate outside of the welded joint between said plate and said tube, each of said end caps having a plurality of tapped bosses for selective connection with inlet and outlet pipes extending in different directions.

'1. In a radiator 01' the extended fin type, a heating chamber comprising a fin-surrounded horizontal tube, inlet and outlet headers at the ends of said tube, each of said headers comprising a vertical plate surrounding said tube and welded thereto, and an end cap covering one end of said tube and welded to said plate outside of the welded joint between said plate and said tube, each of said end caps having downwardly. laterally, and upwardly extending tapped bosses for selective connection with inlet and outlet pipes extending in any of said directions.

8. In a radiator of the extended-fin type. a heating chamber comprising a horizontal fin-surrounded tube, inlet and outlet headers at the ends of said tube, each of said headers including a vertical plate having a tube-embracing aperture surrounded bya countersunk groove, and end caps fitting said grooves for closing the ends of said tube, said caps being adapted to be welded into said grooves, each of said end caps having 9.

depending tapped boss to receive a pipe connection. I

9. In a header for the end of a radiator tube, an

apertured plate for surrounding said tube and adapted to be welded thereto, and a hollow end cap for covering the end of said tube and connecting it to a pipe, said end cap being welded to said plate around the welded joint between said tube and plate, the welded joint between said cap and plate lying well within the outer periphery of said plate.

10. In a header for the end of aradiator tube. an apertured plate for surrounding said tube and adapted to be welded thereto, and a hollow end cap for covering the end of said tube and connecting it to a pipe, said end cap being welded to said plate around the welded joint betweensaid tube and plate, said plate having a tapped pipe connection boss, 'and a channel for joining said boss to said end cap.

11. In a two-part header for the end oi' a water tube radiator, an apertured plate for surrounding a water tube, means for forming a water-tight seal between said tube and said plate,

said plate having a groove surrounding said aperture, and a hollow end cap seated in said groove for covering the end or said tube, said end cap having a pipe connection.

. tifianncmoi CORRECTION,

Patent No. l. 936, 235.

12. In a header for the end of a radiator tube, an apertured plate for surrounding said tube and adapted to be welded thereto, and a hollow end cap for covering the end of said tube and connecting it to a pipe, said end cap being welded to said plate around the welded joint between said tube and plate, said plate having a tapped pipe connection boss, and a channel for joining said boss to said end cap, said plate also having an air vent valve opening communicating with said end cap.

13. In a radiator heating chamber comprising a plurality of horizontal tubes, inlet and outlet headers at the ends of said tubes, each of said headers including a vertical plate having tube embracing apertures and flanged end caps for closing the ends of said tubes, said caps being welded to said plate and having a plurality of tapped bosses extending in difl'erenhdirections for connection with said inlet and outlet pipes.

14. In a radiator, a heating chamber comprising a tube, inlet and outlet headers at the ends of said tube, each of said headers including a plate having a tube embracing aperture, and flanged end caps for closing the ends of said tube, said caps being welded to said plate, the flanges of said end caps lying well within the peripheries of said -plates.

THEODORE S. HART;

195 PHILIP M. BUSH.

" THEODORE s. HART. ET AL.

it is hereby certified that error appears in the printed specifications of the above numbered patent requiring correction as follows:

Page 2, line, 86, claim 2,for "over-shaped" read oval-shaped; and that the said Letters Patent should be read with this correctiontherein that the' same may conformto the record of the case in the Patent Office. t

Signed andsealed this 19th day oi'December, A.'D. 1933;

(Seal) 

